CUTTING TOOL AND CUTTING INSERT THEREFOR

摘要

A cutting tool 10 having replaceable indexable cutting insert 20 retained in insert pockets 18. Each insert pocket 18 has a base wall 24 and first and second rear sidewall 40, 42 sections. A generally circular recess 28 having a peripheral wall 32 extends downwardly from the base wall 24. A first abutment surface 52 located on the first rear sidewall section 40 abuts a first support surface 52'located on the side surface 64 of the cutting insert 20, a second abutment surface 56' located on the side surface 64 of the cutting insert 20, and a third abutment surface 58 located on the peripheral wall 32 of the recess 28 abuts a third support surface 58' located on the cylindrical protrusion 82 of the cutting insert 20.